Buscar
Mostrando ítems 1-10 de 213
A C-glucoside benzoic acid derivative from the leaves of Peltophorum dubium
(2010)
From the methanolic extract of the leaves of Peltophorum dubium Taub (Leguminosae) was isolated after successive chromatographic procedures a new C-glucoside benzoic acid derivative, 3aC-glucopyranosil-4,5-dihydroxy-2-me ...
Caldensinic acid, a prenylated benzoic acid from Piper caldense
(ELSEVIER SCIENCE BV, 2009)
The CH(2)Cl(2) and MeOH extracts from leaves of Piper caldense were subjected to chromatographic separation procedures to afford the new prenylated benzoic acid, caldensinic acid (3-[(2`E,6`E,10`E)-11`-carboxy-3`,7`,15`- ...
Kavalactones and benzoic acid derivatives from leaves of piper fuligineum kunth (Piperaceae)
(2018-06-01)
The known kavalactones (E)-4-methoxy-6-styryl-2H-pyran-2-one, 4-methoxy-6-(3-phenyloxiran-2-yl)-2H-pyran-2-one, 6-(1,2-dihydroxy-2-phenylethyl)-4-methoxy-2H-pyran-2-one, the three benzoic acid derivatives methyl-4-methox ...
Dihydrochalcones and benzoic acid derivatives from piper dennisii
(Georg Thieme Verlag, 2012)
Two new dihydrochalcones, as well as eight known compounds, piperaduncin C, 2,6-dihydroxy-4-methoxydihydrochalcone, 4,2,6-trihydroxy-4-methoxydihydrochalcone, 4-hydroxy-3,5-bis(3-methyl-2- butenyl)-benzoic acid, ...
Prenylated benzoic acid derivatives from Piper aduncum L. and P. hostmannianum C. DC. (Piperaceae)
(ELSEVIER SCIENCE BV, 2009)
The bioactivity-guided fractionation of the crude extracts from leaves of Brazilian species Piper aduncum and Piper hostmannianum by means of bioautography using the fungi Cladosporium cladosporioides and C. sphaerospermum ...
Sequestration of prenylated benzoic acid and chromenes by Naupactus bipes (Coleoptera: Curculionidae) feeding on Piper gaudichaudianum (Piperaceae)
(BIRKHAUSER VERLAG AG, 2009)
The curculionid beetle Naupactus bipes (Germar, 1824) (Coleoptera: Curculionidae: Brachycerinae) has shown feeding preference for leaves of Piper gaudichaudianum, demonstrating an unexpected specificity for an insect ...
Benzoic acid derivatives from piper species and their fungitoxic activity against Cladosporium cladosporioides and C-sphaerospermum
(Amer Chemical Soc, 2004-11-01)
Piper crassinervium, P. aduncum, P. hostmannianum, and P. gaudichaudianum contain the new benzoic acid derivatives crassinervic acid (1), aduncumene (8), hostmaniane (18), and gaudichaudianic acid (20), respectively, as ...
Benzoic acid derivatives from piper species and their fungitoxic activity against Cladosporium cladosporioides and C-sphaerospermum
(Amer Chemical Soc, 2004-11-01)
Piper crassinervium, P. aduncum, P. hostmannianum, and P. gaudichaudianum contain the new benzoic acid derivatives crassinervic acid (1), aduncumene (8), hostmaniane (18), and gaudichaudianic acid (20), respectively, as ...